#include <stdio.h>
#include <pthread.h>
#include <stdlib.h>

pthread_t ntid;

void printids(const char *s)
{
	pid_t pid;
	pthread_t tid;
	
	pid = getpid();
	tid = pthread_self();
	printf("%s pid %u tid %u (0x%x)\n", s, (unsigned int)pid, (unsigned int)tid, (unsigned int)tid);
	
}

void * thr_fn(void *arg)
{
	printids("new thread: ");
	return ((void *)0);
}

int main(void)
{
	int err;
	err = pthread_create(&ntid, NULL, thr_fn, NULL);
	if(0 != err)
		printf("can't create thread: %s\n", strerror(err));

	printids("main thread:");
	sleep(1);//for new thread
	exit(0);
}
